diff --git a/web/src/pages/System/Cluster/steps/initial_step.js b/web/src/pages/System/Cluster/steps/initial_step.js
index 76b38040..1bfc6b1e 100644
--- a/web/src/pages/System/Cluster/steps/initial_step.js
+++ b/web/src/pages/System/Cluster/steps/initial_step.js
@@ -41,7 +41,7 @@ export class InitialStep extends React.Component {
             rules: [
               {
                 type: "string",
-                pattern: /^[\w\.\-_~%]+\:\d+$/, //(https?:\/\/)?
+                pattern: /^[\w\.\-_~%]+(\:\d+)?$/, //(https?:\/\/)?
                 message: "请输入域名或 IP 地址和端口号",
               },
               {